I'll repost and update my list of those that are left and the parts made up of each, bold being ones they can make with the parts of figures we have either out or in the pipeline- Basically now they need Hammerhead is needed for itself, Tiger and Mk10- Nightclub for itself and Romeo fwiw
17 left that have not been announced (16 if we assume Jack is coming):
MKVIII
(Mk7, Centurion, Striker parts)
MKX
(Mk7, Hammerhead, Heartbreaker, Snapper parts)
MKXI
(Centurion, Mk7, Heartbreaker parts) [aka Jack]
MKXII
(WM2, Centurion, Mk7, Shotgun, Heartbreaker parts) [aka Disco]
MKXIII
(Mk7, Centurion, Shotgun, WM2 parts)
MKXIV
(Striker, Centurion, Mk7, Heartbreaker, Shotgun parts)
MK16 Nightclub
(one off design)
MK18 Casanova
(Mk7, Centurion, Heartbreaker, WM2 parts)
MK19 Tiger
(Mk7, Hammerhead, Mk7, Striker parts)
MK27 Disco
(WM2, Centurion, Mk7, Shotgun parts)
MK28 Jack
(Heartbreaker, Mk7, Centurion parts)
MK29 Fiddler
(Mk7, Centurion, Heartbreaker, Starboost, Striker parts)
MK30 Blue Steel
(Centurion parts)
MK31 Piston
(Centurion , Mk7, Striker parts)
MK32 Romeo
(Nightclub, Centurion, Heartbreaker, Mk7 parts)
MK34 Southpaw
(Mk7, Centurion, Snapper, Shotgun, Heartbreaker, Striker parts)
MK37 Hammerhead
(one off design)
MK23 Shades
(Shotgun parts)
Also in this post, an older version of this list
https://www.sideshowcollectors.com/forums/showthread.php?t=138740&p=7840018&viewfull=1#post7840018
I speculated what armors we would definitely see released based on screentime, so far Shotgun and Sneaky have come to pass, plus repaints Tank, Gamma, and Mk9
When you look at the rest we already have gotten-
Midas
Snapper
Igor
Centurion
Starboost
Heartbreaker
Hot Rod
Peacemaker
Bones
Striker
"Mark IX" (its really Mark VIII but whatever, been argued into oblivion)
Shotgun
Sneaky
And now - Disco (far right)
They all appeared in the final fight of IM3 for at least a split second (Midas, Peacemaker, Hot Rod, Disco) and the rest more prominently, the only one that didn't is Python, which is a parted together exclusive. The remaining original armors also appeared on screen briefly (Hammerhead) and front and center in the fight (Nightclub). Releasing them would follow the pattern.
I don't know if they'll or the market have the stamina to release all 35 HPP armors, but I think we'll definitely see the remaining big boys Hammerhead and Nightclub and more exclusives easily (Blue Steel and Shades are straight repaints, the rest are varying degrees of kitbashes). Jack would also make sense, as it is two figures in one (Mark 11 and Jack are repaints of each other, although it would be a break in the pattern as neither appeared on film). Disco and Mark 12 are also repaints of one another, so another twofer.
The rest that had screentime:
Nightclub
Hammerhead
Blue Steel
Shades (on the right)
Tiger
Piston